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Tag: "environment"

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Post April 22 2011

Earth Day Coincides With Heated Debates Over Environmental Rules
An oil spill in California was behind the creation of the first Earth Day in 1970. Now, 41 years la…
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Post November 16 2010

Supernova 'Star Guts' Give Clues to Galaxy Evolution
Supernova 1987A, the first star explosion to be studied from the beginning, is teaching scientists …
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